function limpaBox( c,v ){
	if(c.val() == v) c.val( '' );
}

function trocaBanner( b ){
	
	if(b != null) banner = b;
	
	$('#geralBanner a').removeClass('ativo');
	$('#geralBanner a[href="#'+banner+'"]').addClass('ativo');
	
	$('#banner-01 img')
		.fadeOut()
		.attr('src','_img/banner-0'+banner+'.png')
		.fadeIn();
	
	if(banner < 3) banner++; else banner = 1;
}